CVE-2020-13303 (GCVE-0-2020-13303)

Vulnerability from cvelistv5 – Published: 2020-09-15 12:27 – Updated: 2024-08-04 12:18
VLAI
Summary
A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Due to improper verification of permissions, an unauthorized user can access a private repository within a public project.
Severity
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
CWE
  • Improper authorization in GitLab
Assigner
References
Impacted products
Vendor Product Version
GitLab GitLab Affected: >=1.0, <13.1.10
Affected: >=13.2, <13.2.8
Affected: >=13.3, <13.3.4
Create a notification for this product.
Credits
Thanks [ledz1996](https://hackerone.com/ledz1996) for reporting this vulnerability through our HackerOne bug bounty program
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T12:18:17.068Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/238887"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/962231"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13303.json"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "GitLab",
          "vendor": "GitLab",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e=1.0, \u003c13.1.10"
            },
            {
              "status": "affected",
              "version": "\u003e=13.2, \u003c13.2.8"
            },
            {
              "status": "affected",
              "version": "\u003e=13.3, \u003c13.3.4"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Thanks [ledz1996](https://hackerone.com/ledz1996) for reporting this vulnerability through our HackerOne bug bounty program"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Due to improper verification of permissions, an unauthorized user can access a private repository within a public project."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Improper authorization in GitLab",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-09-15T12:27:32.000Z",
        "orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
        "shortName": "GitLab"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/238887"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://hackerone.com/reports/962231"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13303.json"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@gitlab.com",
          "ID": "CVE-2020-13303",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "GitLab",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003e=1.0, \u003c13.1.10"
                          },
                          {
                            "version_value": "\u003e=13.2, \u003c13.2.8"
                          },
                          {
                            "version_value": "\u003e=13.3, \u003c13.3.4"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "GitLab"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Thanks [ledz1996](https://hackerone.com/ledz1996) for reporting this vulnerability through our HackerOne bug bounty program"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Due to improper verification of permissions, an unauthorized user can access a private repository within a public project."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Improper authorization in GitLab"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://gitlab.com/gitlab-org/gitlab/-/issues/238887",
              "refsource": "MISC",
              "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/238887"
            },
            {
              "name": "https://hackerone.com/reports/962231",
              "refsource": "MISC",
              "url": "https://hackerone.com/reports/962231"
            },
            {
              "name": "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13303.json",
              "refsource": "CONFIRM",
              "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13303.json"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
    "assignerShortName": "GitLab",
    "cveId": "CVE-2020-13303",
    "datePublished": "2020-09-15T12:27:32.000Z",
    "dateReserved": "2020-05-21T00:00:00.000Z",
    "dateUpdated": "2024-08-04T12:18:17.068Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2020-13303",
      "date": "2026-05-28",
      "epss": "0.00142",
      "percentile": "0.34009"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*\", \"versionStartIncluding\": \"13.1.0\", \"versionEndExcluding\": \"13.1.10\", \"matchCriteriaId\": \"6C57CC9D-03EF-4F8C-8CC0-689B297DD258\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*\", \"versionStartIncluding\": \"13.1.0\", \"versionEndExcluding\": \"13.1.10\", \"matchCriteriaId\": \"3C4FC79E-B27D-4985-9B5C-CDC65AE26A58\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*\", \"versionStartIncluding\": \"13.2.0\", \"versionEndExcluding\": \"13.2.8\", \"matchCriteriaId\": \"44781956-BDA5-4C3D-9458-75168CB71CA3\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*\", \"versionStartIncluding\": \"13.2.0\", \"versionEndExcluding\": \"13.2.8\", \"matchCriteriaId\": \"1DD1E032-7913-4CAD-9974-1EFC7B468BA8\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*\", \"versionStartIncluding\": \"13.3.0\", \"versionEndExcluding\": \"13.3.4\", \"matchCriteriaId\": \"CE11E630-53C8-43AF-9F81-EA4AD52D8241\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*\", \"versionStartIncluding\": \"13.3.0\", \"versionEndExcluding\": \"13.3.4\", \"matchCriteriaId\": \"5044D423-9351-4840-BAD4-43EFB42FC527\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Due to improper verification of permissions, an unauthorized user can access a private repository within a public project.\"}, {\"lang\": \"es\", \"value\": \"Se detect\\u00f3 una vulnerabilidad en GitLab versiones anteriores a 13.1.10, 13.2.8 y 13.3.4.\u0026#xa0;Debido a una comprobaci\\u00f3n inapropiada de los permisos, un usuario no autorizado puede acceder a un repositorio privado dentro de un proyecto p\\u00fablico\"}]",
      "id": "CVE-2020-13303",
      "lastModified": "2024-11-21T05:00:59.480",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"cve@gitlab.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N\", \"baseScore\": 7.1, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"LOW\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 4.2}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N\", \"baseScore\": 6.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:S/C:P/I:N/A:N\", \"baseScore\": 4.0, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"SINGLE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 8.0, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2020-09-15T13:15:12.330",
      "references": "[{\"url\": \"https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13303.json\", \"source\": \"cve@gitlab.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://gitlab.com/gitlab-org/gitlab/-/issues/238887\", \"source\": \"cve@gitlab.com\", \"tags\": [\"Broken Link\"]}, {\"url\": \"https://hackerone.com/reports/962231\", \"source\": \"cve@gitlab.com\", \"tags\": [\"Permissions Required\", \"Third Party Advisory\"]}, {\"url\": \"https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13303.json\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://gitlab.com/gitlab-org/gitlab/-/issues/238887\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Broken Link\"]}, {\"url\": \"https://hackerone.com/reports/962231\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Permissions Required\", \"Third Party Advisory\"]}]",
      "sourceIdentifier": "cve@gitlab.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-287\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2020-13303\",\"sourceIdentifier\":\"cve@gitlab.com\",\"published\":\"2020-09-15T13:15:12.330\",\"lastModified\":\"2024-11-21T05:00:59.480\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Due to improper verification of permissions, an unauthorized user can access a private repository within a public project.\"},{\"lang\":\"es\",\"value\":\"Se detect\u00f3 una vulnerabilidad en GitLab versiones anteriores a 13.1.10, 13.2.8 y 13.3.4.\u0026#xa0;Debido a una comprobaci\u00f3n inapropiada de los permisos, un usuario no autorizado puede acceder a un repositorio privado dentro de un proyecto p\u00fablico\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cve@gitlab.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":4.2},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:S/C:P/I:N/A:N\",\"baseScore\":4.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-287\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*\",\"versionStartIncluding\":\"13.1.0\",\"versionEndExcluding\":\"13.1.10\",\"matchCriteriaId\":\"6C57CC9D-03EF-4F8C-8CC0-689B297DD258\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*\",\"versionStartIncluding\":\"13.1.0\",\"versionEndExcluding\":\"13.1.10\",\"matchCriteriaId\":\"3C4FC79E-B27D-4985-9B5C-CDC65AE26A58\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*\",\"versionStartIncluding\":\"13.2.0\",\"versionEndExcluding\":\"13.2.8\",\"matchCriteriaId\":\"44781956-BDA5-4C3D-9458-75168CB71CA3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*\",\"versionStartIncluding\":\"13.2.0\",\"versionEndExcluding\":\"13.2.8\",\"matchCriteriaId\":\"1DD1E032-7913-4CAD-9974-1EFC7B468BA8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*\",\"versionStartIncluding\":\"13.3.0\",\"versionEndExcluding\":\"13.3.4\",\"matchCriteriaId\":\"CE11E630-53C8-43AF-9F81-EA4AD52D8241\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*\",\"versionStartIncluding\":\"13.3.0\",\"versionEndExcluding\":\"13.3.4\",\"matchCriteriaId\":\"5044D423-9351-4840-BAD4-43EFB42FC527\"}]}]}],\"references\":[{\"url\":\"https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13303.json\",\"source\":\"cve@gitlab.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://gitlab.com/gitlab-org/gitlab/-/issues/238887\",\"source\":\"cve@gitlab.com\",\"tags\":[\"Broken Link\"]},{\"url\":\"https://hackerone.com/reports/962231\",\"source\":\"cve@gitlab.com\",\"tags\":[\"Permissions Required\",\"Third Party Advisory\"]},{\"url\":\"https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13303.json\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://gitlab.com/gitlab-org/gitlab/-/issues/238887\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Broken Link\"]},{\"url\":\"https://hackerone.com/reports/962231\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Permissions Required\",\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.